Sayer, M., & Dellar, H. (2019). Outcomes: Advanced - Teacher's Book. United Kingdom: National Geographic Learning.
استشهاد بنمط شيكاغوSayer, Mike, و Hugh Dellar. Outcomes: Advanced - Teacher's Book. United Kingdom: National Geographic Learning, 2019.
MLA استشهادSayer, Mike, و Hugh Dellar. Outcomes: Advanced - Teacher's Book. United Kingdom: National Geographic Learning, 2019.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.